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file_validate_extensions

6 file.inc file_validate_extensions($file, $extensions)
7 file.inc file_validate_extensions(stdClass $file, $extensions)

Check that the filename ends with an allowed extension.

Parameters

$file: A Drupal file object.

$extensions: A string with a space separated list of allowed extensions.

Return value

An array. If the file extension is not allowed, it will contain an error message.

See also

hook_file_validate()

Related topics

1 call to file_validate_extensions()

11 string references to 'file_validate_extensions'

File

drupal/includes/file.inc, line 1638
API for handling file uploads and server file management.

Code

function file_validate_extensions(stdClass $file, $extensions) {
  $errors = array();

  $regex = '/\.(' . preg_replace('/ +/', '|', preg_quote($extensions)) . ')$/i';
  if (!preg_match($regex, $file->filename)) {
    $errors[] = t('Only files with the following extensions are allowed: %files-allowed.', array('%files-allowed' => $extensions));
  }
  return $errors;
}